Disposable serving tray



FIG. 1 is a perspective view of a disposable serving tray showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof; and,

FIG. 4 is a side elevation thereof, the other sides being substantially identical. 

The ornamental design for a disposable serving tray, as shown and described. 